How GST Registration works

  1. Step 1: Answer 5 questions - we build your checklist

    Timeline: Day 0

    • Business type, state, turnover estimate, supply type, and whether you need voluntary registration.
    • Ollvy CA assigned within 4 hours.

    Milestone: Ollvy CA assigned, checklist sent

  2. Step 2: Upload documents through the app

    Timeline: Day 0-1

    • Ollvy CA sends a personalised checklist - not the full 20-item government list.
    • You upload directly. Ollvy CA reviews every document before filing.

    Milestone: Documents verified by Ollvy CA

  3. Step 3: REG-01 filed - ARN in 24 hours

    Timeline: Day 1-2

    • Ollvy CA files REG-01 on the GST portal - all 23 fields across 5 tabs.
    • Application Reference Number (ARN) generated immediately and shared in the app.

    Milestone: ARN generated - shared in app

  4. Step 4: Officer query handled by Ollvy CA

    Timeline: Day 3-5

    • GST officer asks for clarification in about 1 in 5 cases.
    • Ollvy CA responds within 24 hours.
    • Included in the price - not a separate charge.

    Milestone: Query responded

  5. Step 5: GSTIN issued

    Timeline: Day 5-7

    • Government issues your 15-digit GSTIN.
    • Permanent - no renewal needed.
    • Ollvy compliance calendar updated with GSTR-1 (11th) and GSTR-3B (20th) deadlines.

    Milestone: GSTIN active

Everything included in GST Registration

Ollvy CA fills all 23 fields of REG-01

GST application has 23 fields across 5 tabs. Ollvy CA fills everything. You answer 5 questions.

Without Ollvy: 23 fields, 5 tabs, 3-4 hours on the GST portal

With Ollvy: 5 questions in app - about 4 minutes

ARN shared same day - track on gst.gov.in

Application Reference Number generated the moment Ollvy CA submits REG-01. Shared immediately.

Officer queries handled - no extra charge

GST officer asks for clarification in about 1 in 5 cases. Ollvy CA responds within 24 hours. Included in the price.

Without Ollvy: Officer query = you figure out what to submit

With Ollvy: Ollvy CA responds within 24 hours - included

Compliance calendar - GSTR-1 and GSTR-3B deadlines

The moment your GSTIN is active, filing deadlines (11th and 20th) added to your Ollvy calendar.

What could go wrong with GST Reg

Address proof mismatch

  • Business address on your electricity bill must match the application exactly - even flat number format matters.
  • Mismatch triggers an officer query that adds 3-5 days.
  • Ollvy CA cross-checks every address document before filing.

Aadhaar OTP fails

  • GST registration requires Aadhaar OTP on your linked mobile number.
  • If the number is old or inactive, OTP fails and you cannot proceed - must be fixed at an Aadhaar centre first.
  • Ollvy verifies your Aadhaar-linked mobile before filing.

Operating without registration

  • If turnover crossed Rs. 40 lakh (goods) or Rs. 20 lakh (services) without registration, you owe 100% of unpaid GST plus Rs. 10,000 minimum penalty.
  • Penalty starts from the date you should have registered, not when you get caught.

Composition Scheme opt-in window missed

  • Composition Scheme election must be filed within the first 30 days of registration using CMP-02 (Section 10(1)).
  • Miss this and you are locked into regular GST for the full financial year, paying 18% instead of 1% on turnover.
  • Switching later is allowed only at the start of the next FY.

Wrong HSN or SAC code at application

  • Every supply needs the correct 6-digit HSN (goods) or SAC (services) code.
  • A wrong code triggers officer queries, delays GSTIN by 7-10 days, and later causes ITR mismatches when turnover is classified under the wrong category.
  • Ollvy CA verifies HSN and SAC against CBIC notified list before filing.

Photograph and signature mismatch across Aadhaar, PAN, and bank

  • Officers reject applications when the authorized signatory photo on Aadhaar, PAN, and bank statement do not match.
  • This is the #2 cause of GST rejection after address proof.
  • Ollvy checks all three documents side-by-side before submission and updates any mismatch at source first.

Frequently asked questions about GST Registration

When is GST registration required?

Mandatory above Rs. 40 lakh turnover for goods, Rs. 20 lakh for services (Rs. 10 lakh in NE/special category states). Required for any interstate sale regardless of turnover, and for all e-commerce sellers.

Can I register voluntarily?

Yes. Lets you issue GST invoices and claim ITC on purchases. Useful if clients are businesses who need to claim credits on your invoices.

What is the ARN?

Application Reference Number - generated the moment Ollvy CA submits REG-01. Shared immediately. Track progress at gst.gov.in.

What if the officer raises a query?

Ollvy CA responds within 24 hours. Included in the price. Happens in about 1 in 5 cases. Most resolve in one reply.

What documents do I need?

Depends on business type. Ollvy sends a personalised checklist based on your answers - not the full 20-item government list.

What returns after getting GSTIN?

GSTR-1 (sales) by the 11th, GSTR-3B (tax) by the 20th. Every month, even with zero transactions - missing a nil return costs Rs. 50/day. GSTR-9 (annual) by Dec 31.

Can I register for GST in a state where I have no permanent office?

Yes. Ollvy registers Casual Taxable Person (CTP) GST if you will sell at an exhibition, trade fair, or make occasional supplies from a non-home state. CTP is valid for 90 days (extendable by 90 more) and requires an advance tax deposit estimated on projected turnover. For ongoing operations in a new state, Ollvy files an additional place of business under your existing GSTIN.

What happens if my GST registration is rejected?

Ollvy reads the rejection reason from the GST portal (usually address proof mismatch or photograph quality). Ollvy responds to the officer query within 7 working days with corrected documents. If the officer still rejects, Ollvy files a fresh application with the fix applied. No extra fee from Ollvy for rework within the same engagement.

Is Composition Scheme different from regular GST registration?

Yes. Composition Scheme (Section 10) lets you pay 1% of turnover (traders) or 5% (restaurants) instead of regular GST rates, but you cannot claim ITC and cannot make inter-state supplies. You opt in during registration using CMP-02. Eligible only if turnover is under Rs 1.5 crore. Ollvy files regular + CMP-02 together if Composition is the right fit.

Can I cancel GST registration later if business slows down?

Yes. Ollvy files GSTR-10 (final return) and REG-16 (cancellation) if turnover drops below the Rs 40 lakh (goods) or Rs 20 lakh (services) threshold. Cancellation is granted 30-45 days after the final return. Ollvy offers GST cancellation as a separate Rs 999 service.

Do I need separate GST for each state I sell in?

Yes. GST is state-based. Every state where you have a physical place of business needs its own GSTIN. If you ship from one state to customers in another, you bill IGST from your registered state. If you operate from multiple states, Ollvy files one GSTIN application per state.

How long does the GSTIN remain valid once issued?

Permanent, unless cancelled. Exception: Casual Taxable Person (CTP) GST expires after 90 days. For regular GST, you must file monthly or quarterly returns to keep it active. Six months of continuous non-filing triggers automatic cancellation by the officer.

GST Registration

GSTIN in 7 working days. Application, officer queries, and compliance calendar included.

Delivery by 15 Jul

Start Application
For Businesses above ₹40L turnover (₹20L for services)
Type One-time
Turnaround 7 days
4.8(30)

THE PROCESS

How Ollvy registers your GST

Step 1: Answer 5 questions - we build your checklist

Business type, state, turnover estimate, supply type, and whether you need voluntary registration. Ollvy CA assigned within 4 hours.

Milestone: Ollvy CA assigned, checklist sent

Step 2: Upload documents through the app

Ollvy CA sends a personalised checklist - not the full 20-item government list. You upload directly. Ollvy CA reviews every document before filing.

Milestone: Documents verified by Ollvy CA

Step 3: REG-01 filed - ARN in 24 hours

Ollvy CA files REG-01 on the GST portal - all 23 fields across 5 tabs. Application Reference Number (ARN) generated immediately and shared in the app.

Milestone: ARN generated - shared in app

Step 4: Officer query handled by Ollvy CA

GST officer asks for clarification in about 1 in 5 cases. Ollvy CA responds within 24 hours. Included in the price - not a separate charge.

Milestone: Query responded

Step 5: GSTIN issued

Government issues your 15-digit GSTIN. Permanent - no renewal needed. Ollvy compliance calendar updated with GSTR-1 (11th) and GSTR-3B (20th) deadlines.

Milestone: GSTIN active

Day 0

Answer 5 questions - we build your checklist

  • Business type, state, turnover estimate, supply type, and whether you need voluntary registration.
  • Ollvy CA assigned within 4 hours.

Ollvy CA assigned, checklist sent

Ollvy Guided

We file correctly.
Not just on time.

Others

Documents taken as-is. Query or rejection? Your problem.

Ollvy

Every document reviewed before filing. Mismatches and format issues caught upfront.

NEXT STEPS

What GST Reg unlocks

Services that become available or mandatory after completion.

GST Monthly Filing

Required

GSTR-1 by 11th and GSTR-3B by 20th of every month once GSTIN is issued.

₹2,999/mo
Learn more

Business ITR Filing

Required

Company ITR still required annually even with GST registered.

₹4,999
Learn more

TDS Monthly Compliance

Required once you deduct TDS on salaries, rent, or contractor payments.

₹999/mo
Learn more

CUSTOMER REVIEWS

What customers say about GST Reg

✓ GSTIN in 5 days✓ CA was responsive✓ ARN shared same day✓ No extra charges
4.8
Based on 30 verified reviews
March 2026

Done in 6 days. They caught a document issue before filing that I would never have noticed. Tracked everything on the app.

- Rajesh Kumar Agarwal

February 2026

Officer asked for something extra and it was handled without me being involved. Saw it resolved on the dashboard.

- Meenakshi Sundaram

April 2026

We were billing without GST for months. The CA got our GSTIN in 5 days and backdated the first invoice. Clean process.

- Tarun Bhatia

DocumentSole Proprietor / IndividualPvt Ltd / LLP
PAN cardOwner PANCompany / LLP PAN
Aadhaar cardOwner Aadhaar (OTP required)Not required at entity level
Address proof (business)Electricity bill (not older than 2 months)Electricity bill (not older than 2 months)
No-objection letter from property ownerIf premises is rentedIf premises is rented
Bank account proofCancelled cheque or 3-month bank statementCancelled cheque or bank statement
Business registration proofNot required (proprietorship)Certificate of Incorporation or LLP agreement
Director/partner PANNot applicableAll directors or designated partners
Board resolutionNot requiredAuthorising a director to apply
Passport photoOwner photoAuthorised signatory photo

Your documents are encrypted, visible only to your assigned professional, and deleted 90 days after your order closes.

COMMON QUESTIONS

Frequently asked questions

Mandatory above Rs. 40 lakh turnover for goods, Rs. 20 lakh for services (Rs. 10 lakh in NE/special category states). Required for any interstate sale regardless of turnover, and for all e-commerce sellers.

Yes. Lets you issue GST invoices and claim ITC on purchases. Useful if clients are businesses who need to claim credits on your invoices.

Application Reference Number - generated the moment Ollvy CA submits REG-01. Shared immediately. Track progress at gst.gov.in.

Ollvy CA responds within 24 hours. Included in the price. Happens in about 1 in 5 cases. Most resolve in one reply.

Depends on business type. Ollvy sends a personalised checklist based on your answers - not the full 20-item government list.

GSTR-1 (sales) by the 11th, GSTR-3B (tax) by the 20th. Every month, even with zero transactions - missing a nil return costs Rs. 50/day. GSTR-9 (annual) by Dec 31.

Government Fees - GST Registration

ItemGovernment FeeNotes
GST registration applicationFreeNo government fee for registration
Penalty if registering late (turnover above threshold)Rs. 10,000 minimum or 100% of unpaid taxWhichever is higher - stops accruing once registered
Late filing fee after registration (returns with transactions)Rs. 50/day per return, capped at Rs. 10,000Rs. 50/day total per return
Late filing fee (zero-transaction returns)Rs. 20/day per return, capped at Rs. 500Rs. 20/day total per return

RELATED GUIDES

Deep-dive guides on GST Reg

Written by the same Ollvy CA team. Linked sources, updated when regulations change.

1,499

5,000

Delivery by 15 Jul

Start Application